copy   E:\work\code\nRF5_SDK_17.0.2_d674dde\examples\ble_peripheral\ble_app_uart\pca10056\s140\arm5_no_packs\_build\nrf52840_xxaa.hex     E:\work\code\nRF5_SDK_17.0.2_d674dde\examples\ble_peripheral\ble_app_uart\DFU